docs: def soldOutForRole(self,role,includeTemporaryRegs=False):
          '''
          Accepts a DanceRole object and responds if the number of registrations for that
          role exceeds the capacity for that role at this event.
          '''
          return self.numRegisteredForRole(
              role,includeTemporaryRegs=includeTemporaryRegs) >= (self.capacityForRole(role) or 0)